Question: "Which is {facet of a polytope} of {pyramid}, whose {next is} is {quadrilateral} ?"
Paraphrase: "Which is {feature of a polytope} of {pyramid}, whose {following is} is {quadrilateral} ?"
SPARQL (Wikidata): SELECT ?answer WHERE { wd:Q3358290 wdt:P1312 ?answer . ?answer wdt:P156 wd:Q36810}
Answer: triangle